Merge branch 'md-next' of https://github.com/liu-song-6/linux into for-5.2/block
Pull MD changes from Song.
* 'md-next' of https://github.com/liu-song-6/linux:
md: add __acquires/__releases annotations to handle_active_stripes
md: add __acquires/__releases annotations to (un)lock_two_stripes
md: mark md_cluster_mod static
md: use correct type in super_1_sync
md: use correct type in super_1_load
md: use correct types in md_bitmap_print_sb
md: add a missing endianness conversion in check_sb_changes
md: add mddev->pers to avoid potential NULL pointer dereference
